I'm using hackmii, and i've tried 2 sd cards, one that I know normally works on the wii, and neither of them work. I've tried it 3 times. Any ideas?

I'm using hackmii, and i've tried 2 sd cards, one that I know normally works on the wii, and neither of them work. I've tried it 3 times. Any ideas?
it is a 16gb sandisk ultra sdhc card formatted to fat32, and i've used one just like it before. i'm going to try a 1 gigabyte sd card I have
no luck
Are there any alternatives? By the way, the sd card shows up to the system, but it doesn't show the letter.
Thank you.I think i'll try str2hax, as I don't have the internet channel or linux. I am using 4.3, and I have tried looking in days before and after.